/**
  ******************************************************************************
  * @file    stm32f4xx_can.h
  * @author  MCD Application Team
  * @version V1.4.0
  * @date    04-August-2014
  * @brief   This file contains all the functions prototypes for the CAN firmware 
  *          library.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
  *
  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
  * You may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
  *
  *        http://www.st.com/software_license_agreement_liberty_v2
  *
  * Unless required by applicable law or agreed to in writing, software 
  * distributed under the License is distributed on an "AS IS" BASIS, 
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
  ******************************************************************************
  */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F4xx_CAN_H
#define __STM32F4xx_CAN_H

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx.h"

/** @addtogroup STM32F4xx_StdPeriph_Driver
  * @{
  */

/** @addtogroup CAN
  * @{
  */

/* Exported types ------------------------------------------------------------*/

#define IS_CAN_ALL_PERIPH(PERIPH) (((PERIPH) == CAN1) || ((PERIPH) == CAN2))

/** 
  * @brief  CAN init structure definition
  */
typedef struct
{
    uint16_t CAN_Prescaler;   /*!< Specifies the length of a time quantum. 
                                 It ranges from 1 to 1024. */

    uint8_t CAN_Mode;         /*!< Specifies the CAN operating mode.
                                 This parameter can be a value of @ref CAN_operating_mode */

    uint8_t CAN_SJW;          /*!< Specifies the maximum number of time quanta 
                                 the CAN hardware is allowed to lengthen or 
                                 shorten a bit to perform resynchronization.
                                 This parameter can be a value of @ref CAN_synchronisation_jump_width */

    uint8_t CAN_BS1;          /*!< Specifies the number of time quanta in Bit 
                                 Segment 1. This parameter can be a value of 
                                 @ref CAN_time_quantum_in_bit_segment_1 */

    uint8_t CAN_BS2;          /*!< Specifies the number of time quanta in Bit Segment 2.
                                 This parameter can be a value of @ref CAN_time_quantum_in_bit_segment_2 */

    FunctionalState CAN_TTCM; /*!< Enable or disable the time triggered communication mode.
                                This parameter can be set either to ENABLE or DISABLE. */

    FunctionalState CAN_ABOM; /*!< Enable or disable the automatic bus-off management.
                                  This parameter can be set either to ENABLE or DISABLE. */

    FunctionalState CAN_AWUM; /*!< Enable or disable the automatic wake-up mode. 
                                  This parameter can be set either to ENABLE or DISABLE. */

    FunctionalState CAN_NART; /*!< Enable or disable the non-automatic retransmission mode.
                                  This parameter can be set either to ENABLE or DISABLE. */

    FunctionalState CAN_RFLM; /*!< Enable or disable the Receive FIFO Locked mode.
                                  This parameter can be set either to ENABLE or DISABLE. */

    FunctionalState CAN_TXFP; /*!< Enable or disable the transmit FIFO priority.
                                  This parameter can be set either to ENABLE or DISABLE. */
} CAN_InitTypeDef;

/** 
  * @brief  CAN filter init structure definition
  */
typedef struct
{
    uint16_t CAN_FilterIdHigh;            /*!< Specifies the filter identification number (MSBs for a 32-bit
                                              configuration, first one for a 16-bit configuration).
                                              This parameter can be a value between 0x0000 and 0xFFFF */

    uint16_t CAN_FilterIdLow;             /*!< Specifies the filter identification number (LSBs for a 32-bit
                                              configuration, second one for a 16-bit configuration).
                                              This parameter can be a value between 0x0000 and 0xFFFF */

    uint16_t CAN_FilterMaskIdHigh;        /*!< Specifies the filter mask number or identification number,
                                              according to the mode (MSBs for a 32-bit configuration,
                                              first one for a 16-bit configuration).
                                              This parameter can be a value between 0x0000 and 0xFFFF */

    uint16_t CAN_FilterMaskIdLow;         /*!< Specifies the filter mask number or identification number,
                                              according to the mode (LSBs for a 32-bit configuration,
                                              second one for a 16-bit configuration).
                                              This parameter can be a value between 0x0000 and 0xFFFF */

    uint16_t CAN_FilterFIFOAssignment;    /*!< Specifies the FIFO (0 or 1) which will be assigned to the filter.
                                              This parameter can be a value of @ref CAN_filter_FIFO */

    uint8_t CAN_FilterNumber;             /*!< Specifies the filter which will be initialized. It ranges from 0 to 13. */

    uint8_t CAN_FilterMode;               /*!< Specifies the filter mode to be initialized.
                                              This parameter can be a value of @ref CAN_filter_mode */

    uint8_t CAN_FilterScale;              /*!< Specifies the filter scale.
                                              This parameter can be a value of @ref CAN_filter_scale */

    FunctionalState CAN_FilterActivation; /*!< Enable or disable the filter.
                                              This parameter can be set either to ENABLE or DISABLE. */
} CAN_FilterInitTypeDef;

/** 
  * @brief  CAN Tx message structure definition  
  */
typedef struct
{
    uint32_t StdId;  /*!< Specifies the standard identifier.
                        This parameter can be a value between 0 to 0x7FF. */

    uint32_t ExtId;  /*!< Specifies the extended identifier.
                        This parameter can be a value between 0 to 0x1FFFFFFF. */

    uint8_t IDE;     /*!< Specifies the type of identifier for the message that 
                        will be transmitted. This parameter can be a value 
                        of @ref CAN_identifier_type */

    uint8_t RTR;     /*!< Specifies the type of frame for the message that will 
                        be transmitted. This parameter can be a value of 
                        @ref CAN_remote_transmission_request */

    uint8_t DLC;     /*!< Specifies the length of the frame that will be 
                        transmitted. This parameter can be a value between 
                        0 to 8 */

    uint8_t Data[8]; /*!< Contains the data to be transmitted. It ranges from 0 
                        to 0xFF. */
} CanTxMsg;

/** 
  * @brief  CAN Rx message structure definition  
  */
typedef struct
{
    uint32_t StdId;  /*!< Specifies the standard identifier.
                        This parameter can be a value between 0 to 0x7FF. */

    uint32_t ExtId;  /*!< Specifies the extended identifier.
                        This parameter can be a value between 0 to 0x1FFFFFFF. */

    uint8_t IDE;     /*!< Specifies the type of identifier for the message that 
                        will be received. This parameter can be a value of 
                        @ref CAN_identifier_type */

    uint8_t RTR;     /*!< Specifies the type of frame for the received message.
                        This parameter can be a value of 
                        @ref CAN_remote_transmission_request */

    uint8_t DLC;     /*!< Specifies the length of the frame that will be received.
                        This parameter can be a value between 0 to 8 */

    uint8_t Data[8]; /*!< Contains the data to be received. It ranges from 0 to 
                        0xFF. */

    uint8_t FMI;     /*!< Specifies the index of the filter the message stored in 
                        the mailbox passes through. This parameter can be a 
                        value between 0 to 0xFF */
} CanRxMsg;

/* Exported constants --------------------------------------------------------*/

/** @defgroup CAN_Exported_Constants
  * @{
  */

/** @defgroup CAN_InitStatus 
  * @{
  */

#define CAN_InitStatus_Failed  ((uint8_t)0x00) /*!< CAN initialization failed */
#define CAN_InitStatus_Success ((uint8_t)0x01) /*!< CAN initialization OK */


/* Legacy defines */
#define CANINITFAILED CAN_InitStatus_Failed
#define CANINITOK     CAN_InitStatus_Success
/**
  * @}
  */

/** @defgroup CAN_operating_mode 
  * @{
  */

#define CAN_Mode_Normal          ((uint8_t)0x00) /*!< normal mode */
#define CAN_Mode_LoopBack        ((uint8_t)0x01) /*!< loopback mode */
#define CAN_Mode_Silent          ((uint8_t)0x02) /*!< silent mode */
#define CAN_Mode_Silent_LoopBack ((uint8_t)0x03) /*!< loopback combined with silent mode */

#define IS_CAN_MODE(MODE) (((MODE) == CAN_Mode_Normal) || ((MODE) == CAN_Mode_LoopBack) || ((MODE) == CAN_Mode_Silent) || ((MODE) == CAN_Mode_Silent_LoopBack))
/**
  * @}
  */


/**
  * @defgroup CAN_operating_mode 
  * @{
  */
#define CAN_OperatingMode_Initialization ((uint8_t)0x00) /*!< Initialization mode */
#define CAN_OperatingMode_Normal         ((uint8_t)0x01) /*!< Normal mode */
#define CAN_OperatingMode_Sleep          ((uint8_t)0x02) /*!< sleep mode */


#define IS_CAN_OPERATING_MODE(MODE) (((MODE) == CAN_OperatingMode_Initialization) || ((MODE) == CAN_OperatingMode_Normal) || ((MODE) == CAN_OperatingMode_Sleep))
/**
  * @}
  */

/**
  * @defgroup CAN_operating_mode_status
  * @{
  */

#define CAN_ModeStatus_Failed  ((uint8_t)0x00)                   /*!< CAN entering the specific mode failed */
#define CAN_ModeStatus_Success ((uint8_t)!CAN_ModeStatus_Failed) /*!< CAN entering the specific mode Succeed */
/**
  * @}
  */

/** @defgroup CAN_synchronisation_jump_width 
  * @{
  */
#define CAN_SJW_1tq ((uint8_t)0x00) /*!< 1 time quantum */
#define CAN_SJW_2tq ((uint8_t)0x01) /*!< 2 time quantum */
#define CAN_SJW_3tq ((uint8_t)0x02) /*!< 3 time quantum */
#define CAN_SJW_4tq ((uint8_t)0x03) /*!< 4 time quantum */

#define IS_CAN_SJW(SJW) (((SJW) == CAN_SJW_1tq) || ((SJW) == CAN_SJW_2tq) || ((SJW) == CAN_SJW_3tq) || ((SJW) == CAN_SJW_4tq))
/**
  * @}
  */

/** @defgroup CAN_time_quantum_in_bit_segment_1 
  * @{
  */
#define CAN_BS1_1tq  ((uint8_t)0x00) /*!< 1 time quantum */
#define CAN_BS1_2tq  ((uint8_t)0x01) /*!< 2 time quantum */
#define CAN_BS1_3tq  ((uint8_t)0x02) /*!< 3 time quantum */
#define CAN_BS1_4tq  ((uint8_t)0x03) /*!< 4 time quantum */
#define CAN_BS1_5tq  ((uint8_t)0x04) /*!< 5 time quantum */
#define CAN_BS1_6tq  ((uint8_t)0x05) /*!< 6 time quantum */
#define CAN_BS1_7tq  ((uint8_t)0x06) /*!< 7 time quantum */
#define CAN_BS1_8tq  ((uint8_t)0x07) /*!< 8 time quantum */
#define CAN_BS1_9tq  ((uint8_t)0x08) /*!< 9 time quantum */
#define CAN_BS1_10tq ((uint8_t)0x09) /*!< 10 time quantum */
#define CAN_BS1_11tq ((uint8_t)0x0A) /*!< 11 time quantum */
#define CAN_BS1_12tq ((uint8_t)0x0B) /*!< 12 time quantum */
#define CAN_BS1_13tq ((uint8_t)0x0C) /*!< 13 time quantum */
#define CAN_BS1_14tq ((uint8_t)0x0D) /*!< 14 time quantum */
#define CAN_BS1_15tq ((uint8_t)0x0E) /*!< 15 time quantum */
#define CAN_BS1_16tq ((uint8_t)0x0F) /*!< 16 time quantum */

#define IS_CAN_BS1(BS1) ((BS1) <= CAN_BS1_16tq)
/**
  * @}
  */

/** @defgroup CAN_time_quantum_in_bit_segment_2 
  * @{
  */
#define CAN_BS2_1tq ((uint8_t)0x00) /*!< 1 time quantum */
#define CAN_BS2_2tq ((uint8_t)0x01) /*!< 2 time quantum */
#define CAN_BS2_3tq ((uint8_t)0x02) /*!< 3 time quantum */
#define CAN_BS2_4tq ((uint8_t)0x03) /*!< 4 time quantum */
#define CAN_BS2_5tq ((uint8_t)0x04) /*!< 5 time quantum */
#define CAN_BS2_6tq ((uint8_t)0x05) /*!< 6 time quantum */
#define CAN_BS2_7tq ((uint8_t)0x06) /*!< 7 time quantum */
#define CAN_BS2_8tq ((uint8_t)0x07) /*!< 8 time quantum */

#define IS_CAN_BS2(BS2) ((BS2) <= CAN_BS2_8tq)
/**
  * @}
  */

/** @defgroup CAN_clock_prescaler 
  * @{
  */
#define IS_CAN_PRESCALER(PRESCALER) (((PRESCALER) >= 1) && ((PRESCALER) <= 1024))
/**
  * @}
  */

/** @defgroup CAN_filter_number 
  * @{
  */
#define IS_CAN_FILTER_NUMBER(NUMBER) ((NUMBER) <= 27)
/**
  * @}
  */

/** @defgroup CAN_filter_mode 
  * @{
  */
#define CAN_FilterMode_IdMask ((uint8_t)0x00) /*!< identifier/mask mode */
#define CAN_FilterMode_IdList ((uint8_t)0x01) /*!< identifier list mode */

#define IS_CAN_FILTER_MODE(MODE) (((MODE) == CAN_FilterMode_IdMask) || ((MODE) == CAN_FilterMode_IdList))
/**
  * @}
  */

/** @defgroup CAN_filter_scale 
  * @{
  */
#define CAN_FilterScale_16bit ((uint8_t)0x00) /*!< Two 16-bit filters */
#define CAN_FilterScale_32bit ((uint8_t)0x01) /*!< One 32-bit filter */

#define IS_CAN_FILTER_SCALE(SCALE) (((SCALE) == CAN_FilterScale_16bit) || ((SCALE) == CAN_FilterScale_32bit))
/**
  * @}
  */

/** @defgroup CAN_filter_FIFO
  * @{
  */
#define CAN_Filter_FIFO0         ((uint8_t)0x00) /*!< Filter FIFO 0 assignment for filter x */
#define CAN_Filter_FIFO1         ((uint8_t)0x01) /*!< Filter FIFO 1 assignment for filter x */
#define IS_CAN_FILTER_FIFO(FIFO) (((FIFO) == CAN_FilterFIFO0) || ((FIFO) == CAN_FilterFIFO1))

/* Legacy defines */
#define CAN_FilterFIFO0 CAN_Filter_FIFO0
#define CAN_FilterFIFO1 CAN_Filter_FIFO1
/**
  * @}
  */

/** @defgroup CAN_Start_bank_filter_for_slave_CAN 
  * @{
  */
#define IS_CAN_BANKNUMBER(BANKNUMBER) (((BANKNUMBER) >= 1) && ((BANKNUMBER) <= 27))
/**
  * @}
  */

/** @defgroup CAN_Tx 
  * @{
  */
#define IS_CAN_TRANSMITMAILBOX(TRANSMITMAILBOX) ((TRANSMITMAILBOX) <= ((uint8_t)0x02))
#define IS_CAN_STDID(STDID)                     ((STDID) <= ((uint32_t)0x7FF))
#define IS_CAN_EXTID(EXTID)                     ((EXTID) <= ((uint32_t)0x1FFFFFFF))
#define IS_CAN_DLC(DLC)                         ((DLC) <= ((uint8_t)0x08))
/**
  * @}
  */

/** @defgroup CAN_identifier_type 
  * @{
  */
#define CAN_Id_Standard       ((uint32_t)0x00000000) /*!< Standard Id */
#define CAN_Id_Extended       ((uint32_t)0x00000004) /*!< Extended Id */
#define IS_CAN_IDTYPE(IDTYPE) (((IDTYPE) == CAN_Id_Standard) || ((IDTYPE) == CAN_Id_Extended))

/* Legacy defines */
#define CAN_ID_STD CAN_Id_Standard
#define CAN_ID_EXT CAN_Id_Extended
/**
  * @}
  */

/** @defgroup CAN_remote_transmission_request 
  * @{
  */
#define CAN_RTR_Data    ((uint32_t)0x00000000) /*!< Data frame */
#define CAN_RTR_Remote  ((uint32_t)0x00000002) /*!< Remote frame */
#define IS_CAN_RTR(RTR) (((RTR) == CAN_RTR_Data) || ((RTR) == CAN_RTR_Remote))

/* Legacy defines */
#define CAN_RTR_DATA   CAN_RTR_Data
#define CAN_RTR_REMOTE CAN_RTR_Remote
/**
  * @}
  */

/** @defgroup CAN_transmit_constants 
  * @{
  */
#define CAN_TxStatus_Failed    ((uint8_t)0x00) /*!< CAN transmission failed */
#define CAN_TxStatus_Ok        ((uint8_t)0x01) /*!< CAN transmission succeeded */
#define CAN_TxStatus_Pending   ((uint8_t)0x02) /*!< CAN transmission pending */
#define CAN_TxStatus_NoMailBox ((uint8_t)0x04) /*!< CAN cell did not provide 
                                                         an empty mailbox */
/* Legacy defines */
#define CANTXFAILED  CAN_TxStatus_Failed
#define CANTXOK      CAN_TxStatus_Ok
#define CANTXPENDING CAN_TxStatus_Pending
#define CAN_NO_MB    CAN_TxStatus_NoMailBox
/**
  * @}
  */

/** @defgroup CAN_receive_FIFO_number_constants 
  * @{
  */
#define CAN_FIFO0 ((uint8_t)0x00) /*!< CAN FIFO 0 used to receive */
#define CAN_FIFO1 ((uint8_t)0x01) /*!< CAN FIFO 1 used to receive */

#define IS_CAN_FIFO(FIFO) (((FIFO) == CAN_FIFO0) || ((FIFO) == CAN_FIFO1))
/**
  * @}
  */

/** @defgroup CAN_sleep_constants 
  * @{
  */
#define CAN_Sleep_Failed ((uint8_t)0x00) /*!< CAN did not enter the sleep mode */
#define CAN_Sleep_Ok     ((uint8_t)0x01) /*!< CAN entered the sleep mode */

/* Legacy defines */
#define CANSLEEPFAILED CAN_Sleep_Failed
#define CANSLEEPOK     CAN_Sleep_Ok
/**
  * @}
  */

/** @defgroup CAN_wake_up_constants 
  * @{
  */
#define CAN_WakeUp_Failed ((uint8_t)0x00) /*!< CAN did not leave the sleep mode */
#define CAN_WakeUp_Ok     ((uint8_t)0x01) /*!< CAN leaved the sleep mode */

/* Legacy defines */
#define CANWAKEUPFAILED CAN_WakeUp_Failed
#define CANWAKEUPOK     CAN_WakeUp_Ok
/**
  * @}
  */

/**
  * @defgroup CAN_Error_Code_constants
  * @{
  */
#define CAN_ErrorCode_NoErr           ((uint8_t)0x00) /*!< No Error */
#define CAN_ErrorCode_StuffErr        ((uint8_t)0x10) /*!< Stuff Error */
#define CAN_ErrorCode_FormErr         ((uint8_t)0x20) /*!< Form Error */
#define CAN_ErrorCode_ACKErr          ((uint8_t)0x30) /*!< Acknowledgment Error */
#define CAN_ErrorCode_BitRecessiveErr ((uint8_t)0x40) /*!< Bit Recessive Error */
#define CAN_ErrorCode_BitDominantErr  ((uint8_t)0x50) /*!< Bit Dominant Error */
#define CAN_ErrorCode_CRCErr          ((uint8_t)0x60) /*!< CRC Error  */
#define CAN_ErrorCode_SoftwareSetErr  ((uint8_t)0x70) /*!< Software Set Error */
/**
  * @}
  */

/** @defgroup CAN_flags 
  * @{
  */
/* If the flag is 0x3XXXXXXX, it means that it can be used with CAN_GetFlagStatus()
   and CAN_ClearFlag() functions. */
/* If the flag is 0x1XXXXXXX, it means that it can only be used with 
   CAN_GetFlagStatus() function.  */

/* Transmit Flags */
#define CAN_FLAG_RQCP0 ((uint32_t)0x38000001) /*!< Request MailBox0 Flag */
#define CAN_FLAG_RQCP1 ((uint32_t)0x38000100) /*!< Request MailBox1 Flag */
#define CAN_FLAG_RQCP2 ((uint32_t)0x38010000) /*!< Request MailBox2 Flag */

/* Receive Flags */
#define CAN_FLAG_FMP0 ((uint32_t)0x12000003) /*!< FIFO 0 Message Pending Flag */
#define CAN_FLAG_FF0  ((uint32_t)0x32000008) /*!< FIFO 0 Full Flag            */
#define CAN_FLAG_FOV0 ((uint32_t)0x32000010) /*!< FIFO 0 Overrun Flag         */
#define CAN_FLAG_FMP1 ((uint32_t)0x14000003) /*!< FIFO 1 Message Pending Flag */
#define CAN_FLAG_FF1  ((uint32_t)0x34000008) /*!< FIFO 1 Full Flag            */
#define CAN_FLAG_FOV1 ((uint32_t)0x34000010) /*!< FIFO 1 Overrun Flag         */

/* Operating Mode Flags */
#define CAN_FLAG_WKU  ((uint32_t)0x31000008) /*!< Wake up Flag */
#define CAN_FLAG_SLAK ((uint32_t)0x31000012) /*!< Sleep acknowledge Flag */
/* @note When SLAK interrupt is disabled (SLKIE=0), no polling on SLAKI is possible. 
         In this case the SLAK bit can be polled.*/

/* Error Flags */
#define CAN_FLAG_EWG ((uint32_t)0x10F00001) /*!< Error Warning Flag   */
#define CAN_FLAG_EPV ((uint32_t)0x10F00002) /*!< Error Passive Flag   */
#define CAN_FLAG_BOF ((uint32_t)0x10F00004) /*!< Bus-Off Flag         */
#define CAN_FLAG_LEC ((uint32_t)0x30F00070) /*!< Last error code Flag */

#define IS_CAN_GET_FLAG(FLAG) (((FLAG) == CAN_FLAG_LEC) || ((FLAG) == CAN_FLAG_BOF) || ((FLAG) == CAN_FLAG_EPV) || ((FLAG) == CAN_FLAG_EWG) || ((FLAG) == CAN_FLAG_WKU) || ((FLAG) == CAN_FLAG_FOV0) || ((FLAG) == CAN_FLAG_FF0) || ((FLAG) == CAN_FLAG_FMP0) || ((FLAG) == CAN_FLAG_FOV1) || ((FLAG) == CAN_FLAG_FF1) || ((FLAG) == CAN_FLAG_FMP1) || ((FLAG) == CAN_FLAG_RQCP2) || ((FLAG) == CAN_FLAG_RQCP1) || ((FLAG) == CAN_FLAG_RQCP0) || ((FLAG) == CAN_FLAG_SLAK))

#define IS_CAN_CLEAR_FLAG(FLAG) (((FLAG) == CAN_FLAG_LEC) || ((FLAG) == CAN_FLAG_RQCP2) || ((FLAG) == CAN_FLAG_RQCP1) || ((FLAG) == CAN_FLAG_RQCP0) || ((FLAG) == CAN_FLAG_FF0) || ((FLAG) == CAN_FLAG_FOV0) || ((FLAG) == CAN_FLAG_FF1) || ((FLAG) == CAN_FLAG_FOV1) || ((FLAG) == CAN_FLAG_WKU) || ((FLAG) == CAN_FLAG_SLAK))
/**
  * @}
  */


/** @defgroup CAN_interrupts 
  * @{
  */
#define CAN_IT_TME ((uint32_t)0x00000001) /*!< Transmit mailbox empty Interrupt*/

/* Receive Interrupts */
#define CAN_IT_FMP0 ((uint32_t)0x00000002) /*!< FIFO 0 message pending Interrupt*/
#define CAN_IT_FF0  ((uint32_t)0x00000004) /*!< FIFO 0 full Interrupt*/
#define CAN_IT_FOV0 ((uint32_t)0x00000008) /*!< FIFO 0 overrun Interrupt*/
#define CAN_IT_FMP1 ((uint32_t)0x00000010) /*!< FIFO 1 message pending Interrupt*/
#define CAN_IT_FF1  ((uint32_t)0x00000020) /*!< FIFO 1 full Interrupt*/
#define CAN_IT_FOV1 ((uint32_t)0x00000040) /*!< FIFO 1 overrun Interrupt*/

/* Operating Mode Interrupts */
#define CAN_IT_WKU ((uint32_t)0x00010000) /*!< Wake-up Interrupt*/
#define CAN_IT_SLK ((uint32_t)0x00020000) /*!< Sleep acknowledge Interrupt*/

/* Error Interrupts */
#define CAN_IT_EWG ((uint32_t)0x00000100) /*!< Error warning Interrupt*/
#define CAN_IT_EPV ((uint32_t)0x00000200) /*!< Error passive Interrupt*/
#define CAN_IT_BOF ((uint32_t)0x00000400) /*!< Bus-off Interrupt*/
#define CAN_IT_LEC ((uint32_t)0x00000800) /*!< Last error code Interrupt*/
#define CAN_IT_ERR ((uint32_t)0x00008000) /*!< Error Interrupt*/

/* Flags named as Interrupts : kept only for FW compatibility */
#define CAN_IT_RQCP0 CAN_IT_TME
#define CAN_IT_RQCP1 CAN_IT_TME
#define CAN_IT_RQCP2 CAN_IT_TME


#define IS_CAN_IT(IT) (((IT) == CAN_IT_TME) || ((IT) == CAN_IT_FMP0) || ((IT) == CAN_IT_FF0) || ((IT) == CAN_IT_FOV0) || ((IT) == CAN_IT_FMP1) || ((IT) == CAN_IT_FF1) || ((IT) == CAN_IT_FOV1) || ((IT) == CAN_IT_EWG) || ((IT) == CAN_IT_EPV) || ((IT) == CAN_IT_BOF) || ((IT) == CAN_IT_LEC) || ((IT) == CAN_IT_ERR) || ((IT) == CAN_IT_WKU) || ((IT) == CAN_IT_SLK))

#define IS_CAN_CLEAR_IT(IT) (((IT) == CAN_IT_TME) || ((IT) == CAN_IT_FF0) || ((IT) == CAN_IT_FOV0) || ((IT) == CAN_IT_FF1) || ((IT) == CAN_IT_FOV1) || ((IT) == CAN_IT_EWG) || ((IT) == CAN_IT_EPV) || ((IT) == CAN_IT_BOF) || ((IT) == CAN_IT_LEC) || ((IT) == CAN_IT_ERR) || ((IT) == CAN_IT_WKU) || ((IT) == CAN_IT_SLK))
/**
  * @}
  */

/**
  * @}
  */

/* Exported macro ------------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/

/*  Function used to set the CAN configuration to the default reset state *****/
void CAN_DeInit(CAN_TypeDef *CANx);

/* Initialization and Configuration functions *********************************/
uint8_t CAN_Init(CAN_TypeDef *CANx, CAN_InitTypeDef *CAN_InitStruct);
void    CAN_FilterInit(CAN_FilterInitTypeDef *CAN_FilterInitStruct);
void    CAN_StructInit(CAN_InitTypeDef *CAN_InitStruct);
void    CAN_SlaveStartBank(uint8_t CAN_BankNumber);
void    CAN_DBGFreeze(CAN_TypeDef *CANx, FunctionalState NewState);
void    CAN_TTComModeCmd(CAN_TypeDef *CANx, FunctionalState NewState);

/* CAN Frames Transmission functions ******************************************/
uint8_t CAN_Transmit(CAN_TypeDef *CANx, CanTxMsg *TxMessage);
uint8_t CAN_TransmitStatus(CAN_TypeDef *CANx, uint8_t TransmitMailbox);
void    CAN_CancelTransmit(CAN_TypeDef *CANx, uint8_t Mailbox);

/* CAN Frames Reception functions *********************************************/
void    CAN_Receive(CAN_TypeDef *CANx, uint8_t FIFONumber, CanRxMsg *RxMessage);
void    CAN_FIFORelease(CAN_TypeDef *CANx, uint8_t FIFONumber);
uint8_t CAN_MessagePending(CAN_TypeDef *CANx, uint8_t FIFONumber);

/* Operation modes functions **************************************************/
uint8_t CAN_OperatingModeRequest(CAN_TypeDef *CANx, uint8_t CAN_OperatingMode);
uint8_t CAN_Sleep(CAN_TypeDef *CANx);
uint8_t CAN_WakeUp(CAN_TypeDef *CANx);

/* CAN Bus Error management functions *****************************************/
uint8_t CAN_GetLastErrorCode(CAN_TypeDef *CANx);
uint8_t CAN_GetReceiveErrorCounter(CAN_TypeDef *CANx);
uint8_t CAN_GetLSBTransmitErrorCounter(CAN_TypeDef *CANx);

/* Interrupts and flags management functions **********************************/
void       CAN_ITConfig(CAN_TypeDef *CANx, uint32_t CAN_IT, FunctionalState NewState);
FlagStatus CAN_GetFlagStatus(CAN_TypeDef *CANx, uint32_t CAN_FLAG);
void       CAN_ClearFlag(CAN_TypeDef *CANx, uint32_t CAN_FLAG);
ITStatus   CAN_GetITStatus(CAN_TypeDef *CANx, uint32_t CAN_IT);
void       CAN_ClearITPendingBit(CAN_TypeDef *CANx, uint32_t CAN_IT);

#ifdef __cplusplus
}
#endif

#endif /* __STM32F4xx_CAN_H */

/**
  * @}
  */

/**
  * @}
  */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
